I flew to Doha from Hong Kong once on QR, and most of my experience was positive (even though the service was a little mechanical at times), except I was served a bottle of Evian water that didn’t taste like Evian.

I wasn’t paying attention so I can’t remember if the cap seal was intact when I opened it. The giveaway was when I asked one of the flight attendants for a new bottle as the one I had did not taste right. She said there were no new bottles and she could only “refill” it for me… I was thinking, maybe I had not been given Evian after all!